How the central domain of dystrophin acts to bridge F-actin to sarcolemmal lipids.

Mias-Lucquin D, Dos Santos Morais R, Chéron A, Lagarrigue M, Winder SJ, Chenuel T, Pérez J, Appavou MS, Martel A, Alviset G, Le Rumeur E, Combet S, Hubert JF, Delalande O, J Struct Biol :107411 (2019) Europe PMC

SASDFV4 – Conformation of R11-15 human dystrophin fragment in interaction with anionic phospholipid bicelles (SANS)

Dystrophin (R11-15 human dystrophin fragment)
MWexperimental 53 kDa
MWexpected 60 kDa
VPorod 231 nm3
log I(s) 2.75×10-1 2.75×10-2 2.75×10-3 2.75×10-4
Dystrophin (R11-15 human dystrophin fragment) small angle scattering data  s, nm-1
ln I(s)
Dystrophin (R11-15 human dystrophin fragment) Guinier plot ln 2.75×10-1 Rg: 8.1 nm 0 (8.1 nm)-2 s2
(sRg)2I(s)/I(0)
Dystrophin (R11-15 human dystrophin fragment) Kratky plot 1.104 0 3 sRg
p(r)
Dystrophin (R11-15 human dystrophin fragment) pair distance distribution function Rg: 7.7 nm 0 Dmax: 29.6 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Dystrophin (R11-15 human dystrophin fragment) DAMMIF model

SANS data from solutions of the R11-15 human dystrophin fragment with anionic phospholipid bicelles in 20 mM Tris-d11, 150 mM NaCl, 0.1 mM EDTA-d16, in 100% v/v D2O, pH 7.1 were collected on the D22 beam line at the ILL (Grenoble, France) using a 3He multidetector 128 linear sensitive Reuter-Stokes detector at a wavelength of λ = 0.6 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 5.60 mg/ml was measured at 22°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Data were collected at two sample detector positions: 1) 1.4 m for 5 min using a neutron wavelength of 0.6 nm and; 2) 8 m for 20 min using a neutron wavelength of 0.6 nm. Both datasets were recorded on the same sample at 5.6 mg/mL, measured at 22 °C.

Tags: sans
Dystrophin (R11-15 human dystrophin fragment) (Dystrophin 1461-1973)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   60.1 kDa
 
UniProt   P11532 (1461-1973)
Sequence   FASTA